Lung Cancer : The Devastating Disease

What are lung cancers? Lung cancers are the abnormal cells which grow in uncontrolled manner in one or both lungs. They do not function as normal lung cells and do not develop into healthy lung tissue. The abnormal cells can grow, form tumours and interfere with the normal functions of the lung (Lungcancer.org, 2015). Lung cancers can be divided into two major types, namely non-small cell lung cancers (NSCLC) and small cell lung cancers (SCLC). NSCLC can be further classified into three main subtypes, namely adenocarcinoma, squamous-cell carcinoma and large-cell carcinoma (Longo & Harrison, 2012). Lung cancers can be diagnosed by chest X-ray, computerised tomography (CT) scan, positron emission tomography-computerised tomography (PET-CT) scan, bronchoscopy and biopsy (Nhs.uk, 2015). Unfortunately, lung cancers are often diagnosed at the later stages. This is due to the unrecognisable symptoms and warning signs at the earlier stages. NSCLC are often diagnosed at stage IV which accounts for 30-40% of cases whereas 60% of SCLC is diagnosed at stage IV. Lung cancer usually originates from the cells lining the bronchi, bronchioles and alveoli. Carcinogens especially tobacco smoke will alter the gene expression of the normal human lung cells, resulting in cell mutation. The proto-oncogenes will be converted to mutated form, oncogenes. Mutation leads to the decreased expression of the tumour suppressor genes. This results in uncontrolled cell proliferation, cell

     Lung cancer is the most common cancer-related cause of death among men and women. Lung cancer can be undetected for many years causing it to become more dangerous and possibly fatal. There is not cure for lung cancer or any cancer, but if detected in an early stage the lung cancer can be detected, treated, and hopefully terminated. There are many new and developing treatments being tested now that may save lives in the future. Through understanding what the lung cancer is, doctors can easily diagnose and assess cancer patients.

Lung Cancer, like any other type of cancer, is the uncontrollable growth of cells in the lung tissue. The main causes that contribute to lung cancer include inhaling carcinogens (basically, smoking), exposure to ionizing radiation, viral infections and even air pollution. These factors basically damage the tissues lining the bronchi in the lung, leading the cancer to develop further (Vaporciyan & Nesbitt JC, 2000). Primary lung cancers that develop in the epithelial tissues of the lung are known as carcinomas and claim the top spot in terms of leading cancer-related death causes. As of 2004, lung cancer

Lung cancer is a cancer (malignancy) that originates in the tissues of the lungs or the cells lining the airways. Lung cancer originates when normal lung cells become cancer cells, usually after a series of mutations, and begin to divide out of control.

Brief Description: Lung cancer, as with all cancers, is an uncontrollable increase of cells. It happens within the lung tissue, but it could also go on to affect other nearby tissue and spread to further out than just the lungs.

The leading cause of cancer death for both men and women in the United States and worldwide is lung cancer. Lung cancer is responsible for thirty percent of cancer deaths in the United States. The deaths caused by breast cancer, colon cancer and prostate cancer combined do not add up to the deaths that lung cancer causes. In 2007, 158,683 people, 88,243 men and 70,354 women died from lung cancer in the United States (Eldridge, 2012). Out of the 158,683 people that died from lung cancer in 2007, 135,000 of them died of lung cancer caused by smoking cigarettes. The overall survival rate of those with lung cancer is at about fifteen percent.

Lung cancer is a genetic and acquired disease. Lung cancer is genetic because cancer in general is caused by changes to the genes that control the way our cells function, especially how they grow and divide. All of these changes include mutations in the DNA that makes up our genes. Genetic changes that increase cancer risk can be inherited from our parents, if the changes are presents in germ cells. Which are the reproductive cells of the body, those are the eggs and the sperm. Lung cancer is also acquired because as the result of errors that occur as cells divide a person’s lifetime or exposure to certain chemicals. Some examples of these chemicals are found in tobacco smoke, radiation, UV rays from the sun that damage DNA. “In general, cancer cells have more genetic changes than normal cells. But each person’s cancer has a unique combination of genetic alterations.” Some of these changes may be the result of cancer, rather than the cause. As the cancer continues to grow, additional changes will occur. Even within the same tumor, cancer cells may have different genetic changes.

Lung Cancer. Two words that nobody wants to hear. A dreadful and frightening disease that can seriously injure a human being. A horrible disease that can kill somebody that doesn’t deserve such a thing. “Lung cancer is a serious health problem that

As generations of diseases and cures continue to be created, the increase of cancer multiply each day. Although there are many recurring cancers through genes and natural behavior, lung cancer is one of the recurrent cancers that continue to grow; either it has to do with natural behavior or genetics. Lung cancer begins to occur when cells in your lungs begin to grow uncontrollably. This disease is infectious and severe because not only will the cancer affect your lungs which affects your breathing, but also spread throughout your body and affect other organs as well

Lung cancer is a tumor that affects either one or both of the lungs.A primary cancer begins in the lungs and a secondary cancer begins in another place in the body and makes its way up towards the lungs. Lung cancer is the 5th most common cancer. In Australia 59% of males were diagnosed were as 41% of Australian females were diagnosed.

Tobacco use is the number one cause of lung cancer, but people who don't smoke may get lung cancer secondhand. The risks of developing lung cancer are related to three main factors: the age when a person started smoking, how long a person has

1. Medical terminology definition – cancer of a highly malignant form that affects the lungs.

In order to treat and prevent lung cancer it is imperative to first understand what lung cancer actually is. Lung cancer is defined as being the unchecked development of abnormal cells inside one or both lungs (Lung Cancer 101).

Lung cancer is one of the leading causes of death around the world because of its high mortality rate. Smoking is a very common risk factor for lung cancer and other pulmonary diseases. Asthma, pulmonary tuberculosis (TB), and pneumonia are diseases in the lungs, which cause inflammation in the passages of air the lungs and are said to increase the risk of lung cancer, these diseases also affect people at any age.

Lung cancer is the leading cause of cancer deaths in the United States, among both men and women. (Mayo Clinic, 2013) Lung cancer begins in the lungs and usually doesn’t start showing signs or symptoms until the more advanced stages. There are three main types of lung cancer, non-small cell lung cancer which includes four stages of cancer, small cell lung cancer which includes limited or extensive stages of cancer, and last but not least is carcinoid tumor. Lung cancer is a deadly disease that can be caused by smoking, people that are exposed to second hand smoke and can also affect those who have not smoked or never had exposure to second hand smoke. People who smoke have the greatest risk of lung cancer. (Mayo Clinic, 2013) Smokers who quit smoking, even after